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POhow can i add lots of images to listbox
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  1. POhow can i add lots of images to listbox
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    copied!<p>I am making this app for windows phone 7, what I do is retrieve all the images from camera roll, saved pictures and other folder and display them in the listbox inside a wrap panel so they are displayed side by side....the thumbnail of the images is actually displayed hear..... but as the number of images are increasing UI gets very slow and scrolling takes time...</p> <p>I read many post and other question I think data virtualization or lazy loading is what I need but I am not understanding how can I use it, I saw the post from shawn oster and peter torr.....</p> <p>I use a backgroundworker to load the images... here's how...</p> <pre><code> void backroungWorker1_DoWork(object sender, DoWorkEventArgs e) { Dispatcher.BeginInvoke(() =&gt; { foreach (string fileName in fileStorage.GetFileNames("images//*.*")) { if (fileName == null) break; string filepath = System.IO.Path.Combine("images", fileName); try { using (IsolatedStorageFileStream imageStream = fileStorage.OpenFile(filepath, FileMode.Open)) { var imageSource = PictureDecoder.DecodeJpeg(imageStream); BitmapImage bitmapImage = new BitmapImage(); bitmapImage.SetSource(imageStream); var item = new ImageToName { bmp = bitmapImage, FileName = fileName }; vltBitmapImage.Add(item); imageStream.Dispose(); imageStream.Close(); } } catch { Exception x = new Exception(); } } if (vltBitmapImage.Count() != 0) { lone.Visibility = Visibility.Collapsed; this.vaultbox.ItemsSource = vltBitmapImage; } else lone.Visibility = Visibility.Visible; }); } </code></pre> <p>any help is greatly appreciated..... sorry for being a noob...</p>
 

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